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 <dxl:Comment><![CDATA[
	Objective: For a DML query that produces HashJoin with an universal
	child; ensure that HashJoin requests for Singleton Segment distribution
	spec instead of Singleton Master on the outer child.

	create table x(a int);
	create table foo(a int,b int);
	explain delete from x where exists (select foo.a from foo join (select 1 as g)  as tab on foo.b = tab.g);
	]]>
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